[Octave-bug-tracker] [bug #55980] Octave, after load .mat file and using specific command, stop work and starts allocate all available memory

[Rik]

Follow-up Comment #3, bug #55980 (project octave):

The problem is definitely related to the failure of the eval statement within
the try/catch block.

The first variable that does this in the file sehrSchlect.mat is "ahrsEuler". 
When I try to inspect the variable I get


ahrsEuler 
ahrsEuler =

  scalar structure containing the fields:

    MCOS =

      3707764736
               2
               1
               1
               1
               2

    AHRSEulerEKF =

error: octave_base_value::print (): wrong type argument '<unknown type>'


My modified code for testing is below (and also attached as tst_print.m)



more off
load sehrSchlecht.mat
printf('__cantor_delimiter_line__\n');
__cantor_list__ = who();
__cantor_parse_values__ = true;
for __cantor_index__ = 1:length(__cantor_list__)
  __cantor_varname__ = char(__cantor_list__{__cantor_index__});
  printf([__cantor_varname__ '\n']);
  if (__cantor_parse_values__)
    try
      if (strcmp (__cantor_varname__, 'ahrsEuler')) 
        keyboard;
      endif
      eval(['__cantor_string__ = disp(' __cantor_varname__ ');']);
      printf(__cantor_string__);
    catch
      keyboard;
      printf(['<unprintable value>' '\n']);
    end_try_catch;
  endif;
  printf('__cantor_delimiter_line__\n')
endfor;
clear __cantor_list__;
clear __cantor_index__;
clear __cantor_varname__;
clear __cantor_parse_values__;
clear __cantor_string__;


The behavior is worse on the development branch.  In that case, after I hit
the keyboard statement, if I use dbnext then Octave segfaults.



(file #46626)
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Additional Item Attachment:

File name: tst_print.m                    Size:0 KB
    <https://savannah.gnu.org/file/tst_print.m?file_id=46626>



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